<template>
  <div id="app">
    
    <router-view/>
  </div>
</template>

<script>


export default {
  name: 'App',
  created () {
                        //在页面加载时读取sessionStorage里的状态信息
                        if (sessionStorage.getItem("userList1") ) {
                            
                            this.$store.replaceState(JSON.parse(sessionStorage.getItem("userList1")))
                        };
                        //在页面刷新时将vuex里的信息保存到sessionStorage里
                        window.addEventListener("beforeunload",()=>{
                            sessionStorage.setItem("userList1",JSON.stringify(this.$store.state))
                        });
                    },
 
  }
  

  

</script>

<style>
*{
  margin: 0;
  padding: 0;
}
</style>
